Adolescent Tibia Vara, Nonossifying Fibroma, and Bipartite Patella in a Nationally Ranked Adolescent Karate Competitor*

ABSTRACT: I describe a case of adolescent tibia vara, a contralateral nonossifying fibroma of  the tibia, and bipartite patella, which occurred in an adolescent karate competitor of normal  stature. The association of this unusual triad supports the hypothesis that each process has a  shared traumatic etiology.